The fascinating science of bubbles, from soap to champagne – TED Talks

In this whimsical talk and live demo, scientist Li Wei Tan shares the secrets of bubbles — from their relentless pursuit of geometric perfection to their applications in medicine and shipping, where designers are creating more efficient vessels by mimicking the bubbles created by swimming penguins. Learn more about these mathematical marvels and tap into the magic hidden in the everyday world.

The First Step in Terraforming Mars

It’s going to be a lot easier to colonize Mars if we can terraform it first. The first step would be to give Mars a thicker atmosphere, which means it will need a magnetic field, or magnetosphere, to protect it. Here’s how we would do that. Continue reading

Characteristics of Soil Activity


In this activity, students will observe a variety of soil types and describe the characteristics of these soils.  Soil is made up of air, water, recycling organisms, rock particles, and humus.  Different types of soils are defined by the different proportions of humus and rock particles they contain.  Humus is formed from the decomposition produced by recycling organisms.  The three types of rock particles are sand, silt, and clay.

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